Oil produced from the scalp can build up causing the roots to become visibly greasy, weighing down the hair'. '.strtoupper('o')ver washing to combat this problem can strip the fibre leaving it dry'. '.strtoupper('t')his results in a vicious cycle of washing'. '.strtoupper('w')hat if you could have hair that was cared for at both ends?the secret of clay for 72 hours of pure roots and hydrated endsfor the first time, l'oréal paris laboratories have combined 3 refined clays to create its first re balancing range revealing perfectly balanced, beautiful hair.1 scalp feels deeply purified for 72 hours with freshness and light, lifted roots.2 dry hair feels hydrated right to the ends for fluid, free flowing lengths.3 revitalises the hair with softness, shine and bounce.a delicate clay texture for hair purity, hydration and beauty.